151938497 has 8 divisors (see below), whose sum is σ = 163836960. Its totient is φ = 140430240.

The previous prime is 151938487. The next prime is 151938517. The reversal of 151938497 is 794839151.

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 151938497 - 2⁴ = 151938481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151938407) 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, 96743 + ... + 98300.

It is an arithmetic number, because the mean of its divisors is an integer number (20479620).

Almost surely, 2^151938497 is an apocalyptic number.

It is an amenable number.

151938497 is a deficient number, since it is larger than the sum of its proper divisors (11898463).

151938497 is a wasteful number, since it uses less digits than its factorization.

151938497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195103.

The product of its digits is 272160, while the sum is 47.

The square root of 151938497 is about 12326.3334775593. Note that the first 3 decimals coincide. The cubic root of 151938497 is about 533.6083398994.

The spelling of 151938497 in words is "one hundred fifty-one million, nine hundred thirty-eight thousand, four hundred ninety-seven".