1497542650 has 48 divisors (see below), whose sum is σ = 2947632768. Its totient is φ = 564872000.

The previous prime is 1497542611. The next prime is 1497542653. The reversal of 1497542650 is 562457941.

It is a junction number, because it is equal to n+sod(n) for n = 1497542597 and 1497542606.

It is not an unprimeable number, because it can be changed into a prime (1497542653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72480 + ... + 90820.

It is an arithmetic number, because the mean of its divisors is an integer number (61409016).

Almost surely, 2^1497542650 is an apocalyptic number.

1497542650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1497542650 is a deficient number, since it is larger than the sum of its proper divisors (1450090118).

1497542650 is a wasteful number, since it uses less digits than its factorization.

1497542650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18447 (or 18442 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 1497542650 is about 38698.0962064027. The cubic root of 1497542650 is about 1144.0887978777.

The spelling of 1497542650 in words is "one billion, four hundred ninety-seven million, five hundred forty-two thousand, six hundred fifty".