61151562 has 12 divisors (see below), whose sum is σ = 132495090. Its totient is φ = 20383848.

The previous prime is 61151543. The next prime is 61151579. The reversal of 61151562 is 26515116.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 43837641 + 17313921 = 6621^2 + 4161^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1698637 + ... + 1698672.

Almost surely, 2^61151562 is an apocalyptic number.

61151562 is an abundant number, since it is smaller than the sum of its proper divisors (71343528).

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

61151562 is a wasteful number, since it uses less digits than its factorization.

61151562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397317 (or 3397314 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 61151562 is about 7819.9464192538. The cubic root of 61151562 is about 393.9754723752.

Adding to 61151562 its reverse (26515116), we get a palindrome (87666678).

The spelling of 61151562 in words is "sixty-one million, one hundred fifty-one thousand, five hundred sixty-two".