1142613550 has 72 divisors (see below), whose sum is σ = 2393299944. Its totient is φ = 403423680.

The previous prime is 1142613491. The next prime is 1142613557. The reversal of 1142613550 is 553162411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142613557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 342189 + ... + 345511.

It is an arithmetic number, because the mean of its divisors is an integer number (33240277).

Almost surely, 2^1142613550 is an apocalyptic number.

1142613550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142613550 is an abundant number, since it is smaller than the sum of its proper divisors (1250686394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142613550 is a wasteful number, since it uses less digits than its factorization.

1142613550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1142613550 is about 33802.5672101987. The cubic root of 1142613550 is about 1045.4416301435.

Adding to 1142613550 its reverse (553162411), we get a palindrome (1695775961).

It can be divided in two parts, 11426 and 13550, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 1142613550 in words is "one billion, one hundred forty-two million, six hundred thirteen thousand, five hundred fifty".