1497749 has 8 divisors (see below), whose sum is σ = 1669248. Its totient is φ = 1332160.

The previous prime is 1497731. The next prime is 1497757. The reversal of 1497749 is 9477941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1497749 - 2⁸ = 1497493 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (208656).

2^1497749 is an apocalyptic number.

It is an amenable number.

1497749 is a deficient number, since it is larger than the sum of its proper divisors (171499).

1497749 is a wasteful number, since it uses less digits than its factorization.

1497749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955.

The product of its digits is 63504, while the sum is 41.

The square root of 1497749 is about 1223.8255594651. The cubic root of 1497749 is about 114.4141344379.

It can be divided in two parts, 1497 and 749, that multiplied together give a triangular number (1121253 = T₁₄₉₇).

The spelling of 1497749 in words is "one million, four hundred ninety-seven thousand, seven hundred forty-nine".