1145377506 has 128 divisors (see below), whose sum is σ = 2962391040. Its totient is φ = 286944768.

The previous prime is 1145377501. The next prime is 1145377511. The reversal of 1145377506 is 6057735411.

It is an interprime number because it is at equal distance from previous prime (1145377501) and next prime (1145377511).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1145377501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2800230 + ... + 2800638.

It is an arithmetic number, because the mean of its divisors is an integer number (23143680).

Almost surely, 2^1145377506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145377506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481195520).

1145377506 is an abundant number, since it is smaller than the sum of its proper divisors (1817013534).

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

1145377506 is a wasteful number, since it uses less digits than its factorization.

1145377506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 1145377506 is about 33843.4263336324. The cubic root of 1145377506 is about 1046.2839178006.

The spelling of 1145377506 in words is "one billion, one hundred forty-five million, three hundred seventy-seven thousand, five hundred six".