61157316 has 24 divisors (see below), whose sum is σ = 155673504. Its totient is φ = 18532480.

The previous prime is 61157287. The next prime is 61157321. The reversal of 61157316 is 61375116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231525 + ... + 231788.

It is an arithmetic number, because the mean of its divisors is an integer number (6486396).

Almost surely, 2^61157316 is an apocalyptic number.

61157316 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61157316 is an abundant number, since it is smaller than the sum of its proper divisors (94516188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61157316 is a wasteful number, since it uses less digits than its factorization.

61157316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463331 (or 463329 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 61157316 is about 7820.3143159339. The cubic root of 61157316 is about 393.9878289076.

It can be divided in two parts, 6115 and 7316, that added together give a palindrome (13431).

The spelling of 61157316 in words is "sixty-one million, one hundred fifty-seven thousand, three hundred sixteen".