61364121 has 48 divisors (see below), whose sum is σ = 103650624. Its totient is φ = 32006016.

The previous prime is 61364117. The next prime is 61364131. The reversal of 61364121 is 12146316.

It is not a de Polignac number, because 61364121 - 2² = 61364117 is a prime.

It is a super-2 number, since 2×61364121² = 7531110692205282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61364091 and 61364100.

It is not an unprimeable number, because it can be changed into a prime (61364111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311395 + ... + 311591.

It is an arithmetic number, because the mean of its divisors is an integer number (2159388).

Almost surely, 2^61364121 is an apocalyptic number.

It is an amenable number.

61364121 is a deficient number, since it is larger than the sum of its proper divisors (42286503).

61364121 is a wasteful number, since it uses less digits than its factorization.

61364121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 383 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 61364121 is about 7833.5254515448. The cubic root of 61364121 is about 394.4314225212.

The spelling of 61364121 in words is "sixty-one million, three hundred sixty-four thousand, one hundred twenty-one".