61357494 has 32 divisors (see below), whose sum is σ = 138193920. Its totient is φ = 17992800.

The previous prime is 61357493. The next prime is 61357523. The reversal of 61357494 is 49475316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61357493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12949 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (4318560).

Almost surely, 2^61357494 is an apocalyptic number.

61357494 is an abundant number, since it is smaller than the sum of its proper divisors (76836426).

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

61357494 is a wasteful number, since it uses less digits than its factorization.

61357494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30036.

The product of its digits is 90720, while the sum is 39.

The square root of 61357494 is about 7833.1024504981. The cubic root of 61357494 is about 394.4172231753.

The spelling of 61357494 in words is "sixty-one million, three hundred fifty-seven thousand, four hundred ninety-four".