157491416 has 8 divisors (see below), whose sum is σ = 295296420. Its totient is φ = 78745704.

The previous prime is 157491409. The next prime is 157491427. The reversal of 157491416 is 614194751.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×157491416² = 49607092227370112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157491416.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9843206 + ... + 9843221.

Almost surely, 2^157491416 is an apocalyptic number.

It is an amenable number.

157491416 is a deficient number, since it is larger than the sum of its proper divisors (137805004).

157491416 is a wasteful number, since it uses less digits than its factorization.

157491416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686433 (or 19686429 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 157491416 is about 12549.5583986051. The cubic root of 157491416 is about 540.0313379161.

The spelling of 157491416 in words is "one hundred fifty-seven million, four hundred ninety-one thousand, four hundred sixteen".