120542251 has 16 divisors (see below), whose sum is σ = 129830400. Its totient is φ = 111574368.

The previous prime is 120542237. The next prime is 120542269. The reversal of 120542251 is 152245021.

It is a cyclic number.

It is not a de Polignac number, because 120542251 - 2¹³ = 120534059 is a prime.

It is a super-2 number, since 2×120542251² = 29060868552294002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120542231) 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, 328270 + ... + 328636.

It is an arithmetic number, because the mean of its divisors is an integer number (8114400).

Almost surely, 2^120542251 is an apocalyptic number.

120542251 is a deficient number, since it is larger than the sum of its proper divisors (9288149).

120542251 is a wasteful number, since it uses less digits than its factorization.

120542251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 120542251 is about 10979.1735116993. The cubic root of 120542251 is about 493.9842463574.

Adding to 120542251 its reverse (152245021), we get a palindrome (272787272).

The spelling of 120542251 in words is "one hundred twenty million, five hundred forty-two thousand, two hundred fifty-one".