155012002 has 4 divisors (see below), whose sum is σ = 232518006. Its totient is φ = 77506000.

The previous prime is 155011999. The next prime is 155012017. The reversal of 155012002 is 200210551.

155012002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200210551 = 7639 ⋅26209.

It can be written as a sum of positive squares in only one way, i.e., 81378441 + 73633561 = 9021^2 + 8581^2 .

It is a super-3 number, since 3×155012002³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38752999 + ... + 38753002.

Almost surely, 2^155012002 is an apocalyptic number.

155012002 is a deficient number, since it is larger than the sum of its proper divisors (77506004).

155012002 is an equidigital number, since it uses as much as digits as its factorization.

155012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77506003.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 155012002 is about 12450.3816005776. The cubic root of 155012002 is about 537.1823998609.

Adding to 155012002 its reverse (200210551), we get a palindrome (355222553).

The spelling of 155012002 in words is "one hundred fifty-five million, twelve thousand, two".