61229371 has 24 divisors (see below), whose sum is σ = 74265984. Its totient is φ = 50279040.

The previous prime is 61229347. The next prime is 61229401. The reversal of 61229371 is 17392216.

It is not a de Polignac number, because 61229371 - 2¹⁹ = 60705083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61229471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262671 + ... + 262903.

It is an arithmetic number, because the mean of its divisors is an integer number (3094416).

Almost surely, 2^61229371 is an apocalyptic number.

61229371 is a deficient number, since it is larger than the sum of its proper divisors (13036613).

61229371 is a wasteful number, since it uses less digits than its factorization.

61229371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 444 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 61229371 is about 7824.9198717942. The cubic root of 61229371 is about 394.1424991527.

The spelling of 61229371 in words is "sixty-one million, two hundred twenty-nine thousand, three hundred seventy-one".