120551377 has 4 divisors (see below), whose sum is σ = 121291120. Its totient is φ = 119811636.

The previous prime is 120551339. The next prime is 120551383. The reversal of 120551377 is 773155021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773155021 = 1931 ⋅400391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120551377 is a prime.

It is a super-2 number, since 2×120551377² = 29065268993192258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120551177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369627 + ... + 369952.

It is an arithmetic number, because the mean of its divisors is an integer number (30322780).

Almost surely, 2^120551377 is an apocalyptic number.

It is an amenable number.

120551377 is a deficient number, since it is larger than the sum of its proper divisors (739743).

120551377 is an equidigital number, since it uses as much as digits as its factorization.

120551377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739742.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 120551377 is about 10979.5891088875. The cubic root of 120551377 is about 493.9967122118.

The spelling of 120551377 in words is "one hundred twenty million, five hundred fifty-one thousand, three hundred seventy-seven".