1552120135 has 8 divisors (see below), whose sum is σ = 1866371616. Its totient is φ = 1239144480.

The previous prime is 1552120117. The next prime is 1552120153. The reversal of 1552120135 is 5310212551.

It is an interprime number because it is at equal distance from previous prime (1552120117) and next prime (1552120153).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1552120135 - 2²⁵ = 1518565703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316276 + ... + 321145.

It is an arithmetic number, because the mean of its divisors is an integer number (233296452).

Almost surely, 2^1552120135 is an apocalyptic number.

1552120135 is a deficient number, since it is larger than the sum of its proper divisors (314251481).

1552120135 is an equidigital number, since it uses as much as digits as its factorization.

1552120135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637913.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1552120135 is about 39396.9559103238. The cubic root of 1552120135 is about 1157.8219472136.

Adding to 1552120135 its reverse (5310212551), we get a palindrome (6862332686).

The spelling of 1552120135 in words is "one billion, five hundred fifty-two million, one hundred twenty thousand, one hundred thirty-five".