1283751155 has 16 divisors (see below), whose sum is σ = 1565140224. Its totient is φ = 1010607840.

The previous prime is 1283751143. The next prime is 1283751167. The reversal of 1283751155 is 5511573821.

It is an interprime number because it is at equal distance from previous prime (1283751143) and next prime (1283751167).

It is not a de Polignac number, because 1283751155 - 2⁸ = 1283750899 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 511634 + ... + 514136.

It is an arithmetic number, because the mean of its divisors is an integer number (97821264).

Almost surely, 2^1283751155 is an apocalyptic number.

1283751155 is a deficient number, since it is larger than the sum of its proper divisors (281389069).

1283751155 is a wasteful number, since it uses less digits than its factorization.

1283751155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106.

The product of its digits is 42000, while the sum is 38.

The square root of 1283751155 is about 35829.4732727122. The cubic root of 1283751155 is about 1086.8266581753.

The spelling of 1283751155 in words is "one billion, two hundred eighty-three million, seven hundred fifty-one thousand, one hundred fifty-five".