388400153 has 2 divisors, whose sum is σ = 388400154. Its totient is φ = 388400152.

The previous prime is 388400101. The next prime is 388400171. The reversal of 388400153 is 351004883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381499024 + 6901129 = 19532^2 + 2627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388400153 is a prime.

It is not a weakly prime, because it can be changed into another prime (388400053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194200076 + 194200077.

It is an arithmetic number, because the mean of its divisors is an integer number (194200077).

Almost surely, 2^388400153 is an apocalyptic number.

It is an amenable number.

388400153 is a deficient number, since it is larger than the sum of its proper divisors (1).

388400153 is an equidigital number, since it uses as much as digits as its factorization.

388400153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 388400153 is about 19707.8703314184. The cubic root of 388400153 is about 729.6139530098.

The spelling of 388400153 in words is "three hundred eighty-eight million, four hundred thousand, one hundred fifty-three".