1145023154 has 16 divisors (see below), whose sum is σ = 1919375136. Its totient is φ = 507770400.

The previous prime is 1145023123. The next prime is 1145023171. The reversal of 1145023154 is 4513205411.

It is a super-2 number, since 2×1145023154² = 2622156046392215432, which contains 22 as substring.

It is a Curzon 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, 633812 + ... + 635615.

It is an arithmetic number, because the mean of its divisors is an integer number (119960946).

Almost surely, 2^1145023154 is an apocalyptic number.

1145023154 is a deficient number, since it is larger than the sum of its proper divisors (774351982).

1145023154 is a wasteful number, since it uses less digits than its factorization.

1145023154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269481.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1145023154 is about 33838.1907613277. The cubic root of 1145023154 is about 1046.1760083887.

Adding to 1145023154 its reverse (4513205411), we get a palindrome (5658228565).

The spelling of 1145023154 in words is "one billion, one hundred forty-five million, twenty-three thousand, one hundred fifty-four".