1469606749 has 4 divisors (see below), whose sum is σ = 1582653436. Its totient is φ = 1356560064.

The previous prime is 1469606731. The next prime is 1469606767. The reversal of 1469606749 is 9476069641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9476069641 = 47 ⋅201618503.

It is an interprime number because it is at equal distance from previous prime (1469606731) and next prime (1469606767).

It can be written as a sum of positive squares in 2 ways, for example, as 781593849 + 688012900 = 27957^2 + 26230^2 .

It is a cyclic number.

It is not a de Polignac number, because 1469606749 - 2¹¹ = 1469604701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1469606696 and 1469606705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1469609749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56523324 + ... + 56523349.

It is an arithmetic number, because the mean of its divisors is an integer number (395663359).

Almost surely, 2^1469606749 is an apocalyptic number.

It is an amenable number.

1469606749 is a deficient number, since it is larger than the sum of its proper divisors (113046687).

1469606749 is a wasteful number, since it uses less digits than its factorization.

1469606749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113046686.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 1469606749 is about 38335.4502908209. The cubic root of 1469606749 is about 1136.9299640976.

The spelling of 1469606749 in words is "one billion, four hundred sixty-nine million, six hundred six thousand, seven hundred forty-nine".