61901125 has 32 divisors (see below), whose sum is σ = 90784512. Its totient is φ = 41544000.

The previous prime is 61901113. The next prime is 61901149. The reversal of 61901125 is 52110916.

It is not a de Polignac number, because 61901125 - 2⁵ = 61901093 is a prime.

It is a super-3 number, since 3×61901125³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 61901125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16144 + ... + 19606.

It is an arithmetic number, because the mean of its divisors is an integer number (2837016).

Almost surely, 2^61901125 is an apocalyptic number.

61901125 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61901125 is a deficient number, since it is larger than the sum of its proper divisors (28883387).

61901125 is a wasteful number, since it uses less digits than its factorization.

61901125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 61901125 is about 7867.7268000357. The cubic root of 61901125 is about 395.5786530398.

It can be divided in two parts, 61901 and 125, that added together give a palindrome (62026).

The spelling of 61901125 in words is "sixty-one million, nine hundred one thousand, one hundred twenty-five".