157219470 has 24 divisors (see below), whose sum is σ = 408770856. Its totient is φ = 41925168.

The previous prime is 157219463. The next prime is 157219477. The reversal of 157219470 is 74912751.

It is a happy number.

157219470 is a `hidden beast` number, since 1 + 572 + 19 + 4 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (157219463) and next prime (157219477).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157219477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873352 + ... + 873531.

It is an arithmetic number, because the mean of its divisors is an integer number (17032119).

Almost surely, 2^157219470 is an apocalyptic number.

157219470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157219470 is an abundant number, since it is smaller than the sum of its proper divisors (251551386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157219470 is a wasteful number, since it uses less digits than its factorization.

157219470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746896 (or 1746893 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 157219470 is about 12538.7188340755. The cubic root of 157219470 is about 539.7203284312.

The spelling of 157219470 in words is "one hundred fifty-seven million, two hundred nineteen thousand, four hundred seventy".