61151950 has 12 divisors (see below), whose sum is σ = 113742720. Its totient is φ = 24460760.

The previous prime is 61151947. The next prime is 61151957. The reversal of 61151950 is 5915116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611470 + ... + 611569.

It is an arithmetic number, because the mean of its divisors is an integer number (9478560).

Almost surely, 2^61151950 is an apocalyptic number.

61151950 is a deficient number, since it is larger than the sum of its proper divisors (52590770).

61151950 is a wasteful number, since it uses less digits than its factorization.

61151950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223051 (or 1223046 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 61151950 is about 7819.9712275686. The cubic root of 61151950 is about 393.9763056173.

The spelling of 61151950 in words is "sixty-one million, one hundred fifty-one thousand, nine hundred fifty".