1945229151 has 8 divisors (see below), whose sum is σ = 2617434160. Its totient is φ = 1284921792.

The previous prime is 1945229149. The next prime is 1945229171. The reversal of 1945229151 is 1519225491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1945229151 - 2¹ = 1945229149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945229171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2974030 + ... + 2974683.

It is an arithmetic number, because the mean of its divisors is an integer number (327179270).

Almost surely, 2^1945229151 is an apocalyptic number.

1945229151 is a deficient number, since it is larger than the sum of its proper divisors (672205009).

1945229151 is a wasteful number, since it uses less digits than its factorization.

1945229151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948825.

The product of its digits is 32400, while the sum is 39.

The square root of 1945229151 is about 44104.7520228830. The cubic root of 1945229151 is about 1248.3132772101.

The spelling of 1945229151 in words is "one billion, nine hundred forty-five million, two hundred twenty-nine thousand, one hundred fifty-one".