1023413155 has 16 divisors (see below), whose sum is σ = 1264754304. Its totient is φ = 794413440.

The previous prime is 1023413143. The next prime is 1023413189. The reversal of 1023413155 is 5513143201.

It is a happy number.

It is not a de Polignac number, because 1023413155 - 2²¹ = 1021316003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61590 + ... + 76420.

It is an arithmetic number, because the mean of its divisors is an integer number (79047144).

Almost surely, 2^1023413155 is an apocalyptic number.

1023413155 is a deficient number, since it is larger than the sum of its proper divisors (241341149).

1023413155 is a wasteful number, since it uses less digits than its factorization.

1023413155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15246.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1023413155 is about 31990.8292327661. The cubic root of 1023413155 is about 1007.7442566718.

Adding to 1023413155 its reverse (5513143201), we get a palindrome (6536556356).

The spelling of 1023413155 in words is "one billion, twenty-three million, four hundred thirteen thousand, one hundred fifty-five".