61331373 has 36 divisors (see below), whose sum is σ = 95890080. Its totient is φ = 37748592.

The previous prime is 61331371. The next prime is 61331399. The reversal of 61331373 is 37313316.

It is not a de Polignac number, because 61331373 - 2¹ = 61331371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61331371) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 139488 + ... + 139926.

Almost surely, 2^61331373 is an apocalyptic number.

It is an amenable number.

61331373 is a deficient number, since it is larger than the sum of its proper divisors (34558707).

61331373 is a wasteful number, since it uses less digits than its factorization.

61331373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 504 counting only the distinct ones).

The product of its digits is 3402, while the sum is 27.

The square root of 61331373 is about 7831.4349259890. The cubic root of 61331373 is about 394.3612450382.

Adding to 61331373 its reverse (37313316), we get a palindrome (98644689).

The spelling of 61331373 in words is "sixty-one million, three hundred thirty-one thousand, three hundred seventy-three".