121746051 has 16 divisors (see below), whose sum is σ = 206131200. Its totient is φ = 69569064.

The previous prime is 121746049. The next prime is 121746067. The reversal of 121746051 is 150647121.

It is a happy number.

It is not a de Polignac number, because 121746051 - 2¹ = 121746049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121746041) 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, 321891 + ... + 322268.

It is an arithmetic number, because the mean of its divisors is an integer number (12883200).

Almost surely, 2^121746051 is an apocalyptic number.

121746051 is a deficient number, since it is larger than the sum of its proper divisors (84385149).

121746051 is an equidigital number, since it uses as much as digits as its factorization.

121746051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644175 (or 644169 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 121746051 is about 11033.8592976347. The cubic root of 121746051 is about 495.6232003749.

It can be divided in two parts, 12174 and 6051, that added together give a square (18225 = 135²).

The spelling of 121746051 in words is "one hundred twenty-one million, seven hundred forty-six thousand, fifty-one".