1554002137 has 4 divisors (see below), whose sum is σ = 1555074576. Its totient is φ = 1552929700.

The previous prime is 1554002123. The next prime is 1554002141. The reversal of 1554002137 is 7312004551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7312004551 = 17911 ⋅408241.

It is a cyclic number.

It is not a de Polignac number, because 1554002137 - 2¹⁵ = 1553969369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1554000137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534043 + ... + 536944.

It is an arithmetic number, because the mean of its divisors is an integer number (388768644).

Almost surely, 2^1554002137 is an apocalyptic number.

It is an amenable number.

1554002137 is a deficient number, since it is larger than the sum of its proper divisors (1072439).

1554002137 is a wasteful number, since it uses less digits than its factorization.

1554002137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072438.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1554002137 is about 39420.8337938202. The cubic root of 1554002137 is about 1158.2897252438.

Adding to 1554002137 its reverse (7312004551), we get a palindrome (8866006688).

The spelling of 1554002137 in words is "one billion, five hundred fifty-four million, two thousand, one hundred thirty-seven".