1507139 has 2 divisors, whose sum is σ = 1507140. Its totient is φ = 1507138.

The previous prime is 1507123. The next prime is 1507141. The reversal of 1507139 is 9317051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1507139 - 2⁴ = 1507123 is a prime.

Together with 1507141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1507039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753569 + 753570.

It is an arithmetic number, because the mean of its divisors is an integer number (753570).

2^1507139 is an apocalyptic number.

1507139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1507139 is an equidigital number, since it uses as much as digits as its factorization.

1507139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 1507139 is about 1227.6558964140. The cubic root of 1507139 is about 114.6527394674.

The spelling of 1507139 in words is "one million, five hundred seven thousand, one hundred thirty-nine".