153881401 has 4 divisors (see below), whose sum is σ = 154310400. Its totient is φ = 153452404.

The previous prime is 153881383. The next prime is 153881407. The reversal of 153881401 is 104188351.

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: 104188351 = 647 ⋅161033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153881401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153881407) 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, 213961 + ... + 214678.

It is an arithmetic number, because the mean of its divisors is an integer number (38577600).

Almost surely, 2^153881401 is an apocalyptic number.

It is an amenable number.

153881401 is a deficient number, since it is larger than the sum of its proper divisors (428999).

153881401 is an equidigital number, since it uses as much as digits as its factorization.

153881401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428998.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 153881401 is about 12404.8942357442. The cubic root of 153881401 is about 535.8732075993.

The spelling of 153881401 in words is "one hundred fifty-three million, eight hundred eighty-one thousand, four hundred one".