7421050157 has 4 divisors (see below), whose sum is σ = 7421819580. Its totient is φ = 7420280736.

The previous prime is 7421050139. The next prime is 7421050159. The reversal of 7421050157 is 7510501247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4963766116 + 2457284041 = 70454^2 + 49571^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421050157 - 2¹⁶ = 7420984621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421050159) 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, 370058 + ... + 389595.

It is an arithmetic number, because the mean of its divisors is an integer number (1855454895).

Almost surely, 2^7421050157 is an apocalyptic number.

It is an amenable number.

7421050157 is a deficient number, since it is larger than the sum of its proper divisors (769423).

7421050157 is an equidigital number, since it uses as much as digits as its factorization.

7421050157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769422.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 7421050157 is about 86145.5173354946. The cubic root of 7421050157 is about 1950.5411741009.

The spelling of 7421050157 in words is "seven billion, four hundred twenty-one million, fifty thousand, one hundred fifty-seven".