816157351 has 8 divisors (see below), whose sum is σ = 831057920. Its totient is φ = 801336888.

The previous prime is 816157339. The next prime is 816157409. The reversal of 816157351 is 153751618.

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 816157351 - 2¹⁷ = 816026279 is a prime.

It is a super-2 number, since 2×816157351² = 1332225643182674402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 816157351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816157051) 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, 730 + ... + 40408.

It is an arithmetic number, because the mean of its divisors is an integer number (103882240).

Almost surely, 2^816157351 is an apocalyptic number.

816157351 is a deficient number, since it is larger than the sum of its proper divisors (14900569).

816157351 is a wasteful number, since it uses less digits than its factorization.

816157351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40053.

The product of its digits is 25200, while the sum is 37.

The square root of 816157351 is about 28568.4677748037. The cubic root of 816157351 is about 934.5258068105.

The spelling of 816157351 in words is "eight hundred sixteen million, one hundred fifty-seven thousand, three hundred fifty-one".