1145513254 has 4 divisors (see below), whose sum is σ = 1718269884. Its totient is φ = 572756626.

The previous prime is 1145513233. The next prime is 1145513263. The reversal of 1145513254 is 4523155411.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286378312 + ... + 286378315.

It is an arithmetic number, because the mean of its divisors is an integer number (429567471).

Almost surely, 2^1145513254 is an apocalyptic number.

1145513254 is a deficient number, since it is larger than the sum of its proper divisors (572756630).

1145513254 is an equidigital number, since it uses as much as digits as its factorization.

1145513254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572756629.

The product of its digits is 12000, while the sum is 31.

The square root of 1145513254 is about 33845.4318040116. The cubic root of 1145513254 is about 1046.3252507055.

Adding to 1145513254 its reverse (4523155411), we get a palindrome (5668668665).

The spelling of 1145513254 in words is "one billion, one hundred forty-five million, five hundred thirteen thousand, two hundred fifty-four".