121653026 has 16 divisors (see below), whose sum is σ = 207724608. Its totient is φ = 52892400.

The previous prime is 121653023. The next prime is 121653043. The reversal of 121653026 is 620356121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121652986 and 121653004.

It is not an unprimeable number, because it can be changed into a prime (121653023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119705 + ... + 120716.

It is an arithmetic number, because the mean of its divisors is an integer number (12982788).

Almost surely, 2^121653026 is an apocalyptic number.

121653026 is a deficient number, since it is larger than the sum of its proper divisors (86071582).

121653026 is a wasteful number, since it uses less digits than its factorization.

121653026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240457.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 121653026 is about 11029.6430585944. The cubic root of 121653026 is about 495.4969345516.

The spelling of 121653026 in words is "one hundred twenty-one million, six hundred fifty-three thousand, twenty-six".