1401506137 has 2 divisors, whose sum is σ = 1401506138. Its totient is φ = 1401506136.

The previous prime is 1401506107. The next prime is 1401506143. The reversal of 1401506137 is 7316051041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385030656 + 16475481 = 37216^2 + 4059^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401506137 - 2²³ = 1393117529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401506107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700753068 + 700753069.

It is an arithmetic number, because the mean of its divisors is an integer number (700753069).

Almost surely, 2^1401506137 is an apocalyptic number.

It is an amenable number.

1401506137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401506137 is an equidigital number, since it uses as much as digits as its factorization.

1401506137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1401506137 is about 37436.6950597939. The cubic root of 1401506137 is about 1119.0899646901.

Adding to 1401506137 its reverse (7316051041), we get a palindrome (8717557178).

The spelling of 1401506137 in words is "one billion, four hundred one million, five hundred six thousand, one hundred thirty-seven".