248157919 has 2 divisors, whose sum is σ = 248157920. Its totient is φ = 248157918.

The previous prime is 248157893. The next prime is 248157937. The reversal of 248157919 is 919751842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248157919 - 2¹⁵ = 248125151 is a prime.

It is a super-2 number, since 2×248157919² = 123164705524821122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248107919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124078959 + 124078960.

It is an arithmetic number, because the mean of its divisors is an integer number (124078960).

Almost surely, 2^248157919 is an apocalyptic number.

248157919 is a deficient number, since it is larger than the sum of its proper divisors (1).

248157919 is an equidigital number, since it uses as much as digits as its factorization.

248157919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 248157919 is about 15753.0288833608. The cubic root of 248157919 is about 628.4094580136.

The spelling of 248157919 in words is "two hundred forty-eight million, one hundred fifty-seven thousand, nine hundred nineteen".