157421301 has 4 divisors (see below), whose sum is σ = 209895072. Its totient is φ = 104947532.

The previous prime is 157421291. The next prime is 157421339. The reversal of 157421301 is 103124751.

157421301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 103124751 = 3 ⋅34374917.

It is a cyclic number.

It is not a de Polignac number, because 157421301 - 2⁹ = 157420789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157421101) 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, 26236881 + ... + 26236886.

It is an arithmetic number, because the mean of its divisors is an integer number (52473768).

Almost surely, 2^157421301 is an apocalyptic number.

It is an amenable number.

157421301 is a deficient number, since it is larger than the sum of its proper divisors (52473771).

157421301 is an equidigital number, since it uses as much as digits as its factorization.

157421301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52473770.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 157421301 is about 12546.7645630258. The cubic root of 157421301 is about 539.9511855737.

The spelling of 157421301 in words is "one hundred fifty-seven million, four hundred twenty-one thousand, three hundred one".