61914145 has 16 divisors (see below), whose sum is σ = 75271680. Its totient is φ = 48887104.

The previous prime is 61914133. The next prime is 61914163. The reversal of 61914145 is 54141916.

It is a cyclic number.

It is not a de Polignac number, because 61914145 - 2⁵ = 61914113 is a prime.

It is a super-2 number, since 2×61914145² = 7666722702162050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235284 + ... + 235546.

It is an arithmetic number, because the mean of its divisors is an integer number (4704480).

Almost surely, 2^61914145 is an apocalyptic number.

It is an amenable number.

61914145 is a deficient number, since it is larger than the sum of its proper divisors (13357535).

61914145 is a wasteful number, since it uses less digits than its factorization.

61914145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704.

The product of its digits is 4320, while the sum is 31.

The square root of 61914145 is about 7868.5541873968. The cubic root of 61914145 is about 395.6063858314.

The spelling of 61914145 in words is "sixty-one million, nine hundred fourteen thousand, one hundred forty-five".