157038247 has 8 divisors (see below), whose sum is σ = 160072416. Its totient is φ = 154033152.

The previous prime is 157038209. The next prime is 157038253. The reversal of 157038247 is 742830751.

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 157038247 - 2¹⁵ = 157005479 is a prime.

It is a super-2 number, since 2×157038247² = 49322022041666018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157038347) 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, 3798 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (20009052).

Almost surely, 2^157038247 is an apocalyptic number.

157038247 is a deficient number, since it is larger than the sum of its proper divisors (3034169).

157038247 is a wasteful number, since it uses less digits than its factorization.

157038247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14537.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 157038247 is about 12531.4902146552. The cubic root of 157038247 is about 539.5128746044.

Adding to 157038247 its reverse (742830751), we get a palindrome (899868998).

The spelling of 157038247 in words is "one hundred fifty-seven million, thirty-eight thousand, two hundred forty-seven".