61541900 has 36 divisors (see below), whose sum is σ = 152625648. Its totient is φ = 21099840.

The previous prime is 61541899. The next prime is 61541911. The reversal of 61541900 is 914516.

It is a super-2 number, since 2×61541900² = 7574810911220000, 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 61541900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43259 + ... + 44658.

Almost surely, 2^61541900 is an apocalyptic number.

It is an amenable number.

61541900 is an abundant number, since it is smaller than the sum of its proper divisors (91083748).

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

61541900 is a wasteful number, since it uses less digits than its factorization.

61541900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87938 (or 87931 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 61541900 is about 7844.8645622471. The cubic root of 61541900 is about 394.8119598486.

The spelling of 61541900 in words is "sixty-one million, five hundred forty-one thousand, nine hundred".