151120401977 has 2 divisors, whose sum is σ = 151120401978. Its totient is φ = 151120401976.

The previous prime is 151120401959. The next prime is 151120402001. The reversal of 151120401977 is 779104021151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108514901056 + 42605500921 = 329416^2 + 206411^2 .

It is a cyclic number.

It is not a de Polignac number, because 151120401977 - 2¹² = 151120397881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151120401977.

It is not a weakly prime, because it can be changed into another prime (151120401937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75560200988 + 75560200989.

It is an arithmetic number, because the mean of its divisors is an integer number (75560200989).

Almost surely, 2^151120401977 is an apocalyptic number.

It is an amenable number.

151120401977 is a deficient number, since it is larger than the sum of its proper divisors (1).

151120401977 is an equidigital number, since it uses as much as digits as its factorization.

151120401977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 38.

The spelling of 151120401977 in words is "one hundred fifty-one billion, one hundred twenty million, four hundred one thousand, nine hundred seventy-seven".