155145011 has 16 divisors (see below), whose sum is σ = 182020608. Its totient is φ = 129494400.

The previous prime is 155145007. The next prime is 155145017. The reversal of 155145011 is 110541551.

It is not a de Polignac number, because 155145011 - 2² = 155145007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155145017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39371 + ... + 43131.

It is an arithmetic number, because the mean of its divisors is an integer number (11376288).

Almost surely, 2^155145011 is an apocalyptic number.

155145011 is a deficient number, since it is larger than the sum of its proper divisors (26875597).

155145011 is an equidigital number, since it uses as much as digits as its factorization.

155145011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 155145011 is about 12455.7220184139. The cubic root of 155145011 is about 537.3360001554.

Adding to 155145011 its reverse (110541551), we get a palindrome (265686562).

The spelling of 155145011 in words is "one hundred fifty-five million, one hundred forty-five thousand, eleven".